82478365 has 8 divisors (see below), whose sum is σ = 101649240. Its totient is φ = 64199232.

The previous prime is 82478353. The next prime is 82478377. The reversal of 82478365 is 56387428.

It is an interprime number because it is at equal distance from previous prime (82478353) and next prime (82478377).

It can be written as a sum of positive squares in 4 ways, for example, as 6335289 + 76143076 = 2517^2 + 8726^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82478365 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222730 + ... + 223099.

It is an arithmetic number, because the mean of its divisors is an integer number (12706155).

Almost surely, 2^82478365 is an apocalyptic number.

It is an amenable number.

82478365 is a deficient number, since it is larger than the sum of its proper divisors (19170875).

82478365 is a wasteful number, since it uses less digits than its factorization.

82478365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445871.

The product of its digits is 322560, while the sum is 43.

The square root of 82478365 is about 9081.7600166488. The cubic root of 82478365 is about 435.2913272874.

The spelling of 82478365 in words is "eighty-two million, four hundred seventy-eight thousand, three hundred sixty-five".